Level.



F. SGHTAB.

LEVEL.

APPLICATION FILED 00T. 28,1907.

2 SHEETS-SHEET 1 Patented Nov. 3, 1908.

WITNESSES NVENTOR @KM was@ A; I." 5mg, w31@ g2 F. SCHTABB.

LEVEL.

APPLIUMLON FILED 001. 28,1907.

A903,01 1. Patented Nov. 3, 1908x 2 SHEETS-SHEET 2.

WITNESSES NVENTOR i 1' w CMM /Hwf 15C/11 mb@ FERDINAND SCHTABE, OF BROOKLYN NEW"YORK.`

LEVEL.

Specification of Letters Patent.

Patented Nov. 3; 190B'.

Application llad. ctober 28, 1907. BerlaLNn. 899,581.

To all whom/it may concern:

Be it known that l, Frnnniminn SGHTABE, n citizen ol the United States, residing at Brooklyn, in'tho county of Kings und SI5-ele of New York, have` invented certain newi und useful lnninovonienlsin Levels, of' which the following is n specification.

My invention relates; to levelu and parl ticulnrlbv contemplates the provision of an improved struotur otl this character especially clesigned'tglr use in conjunction with boring; brneeS, Enough detachable therefrom for use in conjunction with n square, rule, or like implement.

My invention further and speeitionlly re sides in the following featuresl ol"ooinstrueA tion, arrangement und operution fis will he hereinafter (h'fneribed with reference to the accompanying drawings forming n partr of this specification, in whiuh like numerals nre used to designa@ lille parte throughout` the several figs, fon, und in whirh.

i" in un. elevation of u Vboring nziee Figure i illust rot ing nl v iniprovements` otnfrlied thereto und in the exteinled ynlsition, Jig. il in n horizontal sectional view token on the linf.I 2**2 of Fig. 1., Figi. .':l is n vertical sectional view taken through my iniprovonzents in 21 Closed poeilion. Fig. i is un enlnrgd sertionnl view on tho lino lY fl of FQ sind broken :u Fig. 5 is :in elmntion ot' o portion o device und to iw ln-xreinnfter Specifically referred to, t3 isn plan view ol" the Sli ig indirnior, Fig. '2" ai face view of o. portion of the :square or rule und Showing the level' :dtnohed thereto, .and Fig. 5S is n section through f-uifl rule or explore und illustrating the mine.

In the prnetienl eml'mdirnent. of my inven-V tion7 l provide the handley portion .k of :i boring bruce l with il reftnngul-.ir basing l mounted Lhoronbout, und having :ieruroft' therein :i skeleton foune El. i

The l'rnuie preferohly arranged independent ot` Llic Circular movement of the operating` parts of the brace Il, by fitting the naine upon fini.- tened portions o'l the handle A which is in the forni of a eleeve Iitting loonoly about the upper portion of the hrruro ll.

My improved level comprises rectangular skeleton fronen i?, und 4, enen of lQuid tions 2 and 4 beingy provided with longitudinal slots 5 having bow-.led edges t5 Sliding upon the double beveled longitudinal edges. 7 of the cent1-:il .eerst-ions Il, b v this monos the said trames or sections 3 :ind 4 muy he telescoped one upon the other to occupy the closed position Within the-casing 1 or to be extended outwardly as shown in Fig. 1 in order that the operator of thebrace be milde positiivethat the tool is mandy-perpendiculur befone beginningto bore. Fortinis purposo they outor section or frame 4 is pro.v vided with' horizontal levels 8` upon its side and front; pieces and with. :i vertioal level 9 upon its front face. Thus the operator of the brace B may be sure that; the tool is: exnctly at right :ingles to the work, and in order to render the levels accurate und oper4 sible to angular work, l.l provide the levels 8 und 9 each with a sliding indirntor 10 mounted through :L slot 1l adjacent the level and provided with on upwardly extending edge l2 engaging with n Einige 18 L o prevent the occidental removal ot' Suid indio-tor und to hold the saine slidzihly Within the slot ll.. The indicators l0 are further provided with zin indicator finger 14 extending above tho level und adapted to be moved to iliiiierent points thereon when on nngulnr opening is desired to be bored., Suid indicator@` being hold Stationary when desired by :i smell set screw l5 threndedly engaging through :in opening in Suid indicator und adopted to engage the material of the level lunrring.

ln order that the extensible frames or ons ing 2. 3 und -l :nav not be pulled entirely npnrt, l provide the inner ond outer Seo- Lionb- 2 and l with longitudinal :dota 115 :ind l provide ihe central frame or :eef-tion with studs 1T screwed horeon and prodief'ting within said slots lo.

ln oase it may be desired lo use my ini proved level in conjuncion with :l sonoro. rule, or the like C, l may provide the outer Section 4 With a pair of curved spring finger1 lli extending therefrom and adapted to be clasped over the Square or rule (l is shown in Figs. T und 8.

.Hoving thus fully described my invention, .l claim:

l. In n device of the ohnrucier described, the combination with e boring hrnne or the like, of un extensible series ol' frames or :See tions mounted thereoii` und levels carried by the outer one of said sections, suhstzur tinlly as described.

Q, In n devine of the clnirsufter dosnribvd. the oonihirmtion with a boring hmrfo or the like, of n plurality of frames or Section5 nornmlly held adjacent :ind mounted about :mid brace und hnving sliding eonnselitms with one another, and levels carried b one of said sections, substantially as descri ed.

il. ln :1 device of the character described, the combination with si. borin brace, of u casinr carried thereby, a plura ity of frames or sections normally carried within the casing' und having sliding connections with one another und levels carried by one of said sections, substantially described.

1. ln n device of the character described, the combination with a boring brace, of a plurality of frames or sections havin slid ing connections with each other an nor inally held adjacent and mounted about said brace and adapted to be extended at right angles thereto, and levels carried by one of said sections, substantially as described.

5. ln a device of the character described,

the combination with a boring brace, of a plurality of frames or sections normally held adjacent and mounted about saidbrace, said sections havin sliding connections with each other an being arranged to extend outwardly at right angles to said bruce and detachable from one another, and levels cnrx'ied by one of said franies or sections, said last named section beingr provided with curved spring fingers adapted for engage ment with a square, rule or like imlzlelnent, substantially :1s described.

ln testimony whereof I affix my signature in presence of two witnesses.

FERDINAND SGHTABE. lvitnesses LOUIS HAAREMANN, LAURA HAAREMANN. 

